CN107974650A - A kind of machining process of aluminum alloy machinery casting - Google Patents
A kind of machining process of aluminum alloy machinery casting Download PDFInfo
- Publication number
- CN107974650A CN107974650A CN201711222029.4A CN201711222029A CN107974650A CN 107974650 A CN107974650 A CN 107974650A CN 201711222029 A CN201711222029 A CN 201711222029A CN 107974650 A CN107974650 A CN 107974650A
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- CN
- China
- Prior art keywords
- aluminium alloy
- casting
- alloy castings
- temperature
- machining process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The present invention provides a kind of machining process of aluminum alloy machinery casting, it is related to technical field of mechanical processing, includes the following steps：(1) aluminium alloy castings is first heated to 300 450 DEG C, and maintained 10 15 minutes；(2) aluminium alloy castings temperature is cooled to rapidly 200 250 DEG C within half a minute, and is maintained 10 15 minutes within the temperature range of 200 250 DEG C；(3) after 300 450 DEG C will be heated rapidly in aluminium alloy castings half a minute again, it is machined within the temperature range of 300 450 DEG C.In the present invention, the stress of cast-internal is discharged to the rapid heat cycle of aluminium alloy castings, effectively casting can be avoided to be broken in process by the present invention completely；It is machined at the heating temperature at the same time, because casting is generally in high Warm status, so the heat that mechanical processing locally produces can be neglected, deformation will not be caused to damage casting.
Description
Technical field
The present invention relates to technical field of mechanical processing, and in particular to a kind of machining process of aluminum alloy machinery casting.
Background technology
Aluminium alloy castings is to directly obtain aluminium alloy used in required part using casting technique, and cast aluminium alloy gold has
Good casting character, can be made complex-shaped part；Huge optional equipment is not required；With saving metal, reduce
Cost, the advantages that reducing work hours, it is used widely in aircraft industry and civilian industry.For manufacturing beam, combustion turbine vane, pump
Body, hanger, wheel hub, the casing etc. of air inlet lip and engine.It is additionally operable to cylinder head, gearbox and the piston of manufacture automobile, instrument
The parts such as the housing and the booster pump housing of instruments and meters.
In order to which aluminium alloy castings is applied to mechanical part, it is also necessary to aluminium alloy castings is machined, existing aluminium
There are following technical problem for the machining process of alloy-steel casting：
1st, carry out at normal temperatures, due to the generation of processing amount of localized heat when being processed aluminium alloy castings, can enable aluminum alloy to cast
There are certain deformation for part；
2nd, cast-internal stress release is incomplete, and the twisting force of generation is big, is easily broken in process, such as using general
Logical milling cutter grinding technique can not meet high-precision gradient processing request, and machining yield is low.
The content of the invention
The present invention provides a kind of machining process of aluminum alloy machinery casting, to solve the machinery of existing aluminium alloy castings
The existing processing deformation of processing method is big, because cast-internal stress release not exclusively and caused by the low technology of machining yield ask
Topic.
In order to solve the above technical problems, the present invention uses following technological means：
A kind of machining process of aluminum alloy machinery casting, includes the following steps：
（1）Aluminium alloy castings is first heated to 300-450 DEG C, and is maintained 10-15 minutes；
（2）Aluminium alloy castings temperature is cooled to rapidly 200-250 DEG C within half a minute, and in 200-250 DEG C of temperature range
Interior maintenance 10-15 minutes；
（3）After 300-450 DEG C will be heated rapidly in aluminium alloy castings half a minute again, within the temperature range of 300-450 DEG C into
Row mechanical processing.
Preferably, step（3）In temperature compare step（1）In at least 20 DEG C of temperature height.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
In the present invention, the stress of cast-internal is discharged, can effectively avoided to the rapid heat cycle of aluminium alloy castings by the present invention completely
Casting is broken in process；It is machined at the heating temperature at the same time, because casting is generally in high Warm status, so
It is machined the heat locally produced can be neglected, deformation will not be caused to damage casting.
Embodiment
All features disclosed in this specification, can be with any in addition to mutually exclusive feature and/or step
Mode combines.
Embodiment 1
A kind of machining process of aluminum alloy machinery casting, includes the following steps：
（1）Aluminium alloy castings is first heated to 350-380 DEG C, and is maintained 10-15 minutes；
（2）Aluminium alloy castings temperature is cooled to rapidly 200-250 DEG C within half a minute, and in 200-250 DEG C of temperature range
Interior maintenance 10-15 minutes；
（3）After 400-420 DEG C will be heated rapidly in aluminium alloy castings half a minute again, within the temperature range of 300-450 DEG C into
Row mechanical processing.
Embodiment 2
A kind of machining process of aluminum alloy machinery casting, includes the following steps：
（1）Aluminium alloy castings is first heated to 300-350 DEG C, and is maintained 10-15 minutes；
（2）Aluminium alloy castings temperature is cooled to rapidly 200-250 DEG C within half a minute, and in 200-250 DEG C of temperature range
Interior maintenance 10-15 minutes；
（3）After 370-400 DEG C will be heated rapidly in aluminium alloy castings half a minute again, within the temperature range of 300-450 DEG C into
Row mechanical processing.
Embodiment 3
A kind of machining process of aluminum alloy machinery casting, includes the following steps：
（1）Aluminium alloy castings is first heated to 400-420 DEG C, and is maintained 10-15 minutes；
（2）Aluminium alloy castings temperature is cooled to rapidly 200-250 DEG C within half a minute, and in 200-250 DEG C of temperature range
Interior maintenance 10-15 minutes；
（3）After 420-450 DEG C will be heated rapidly in aluminium alloy castings half a minute again, within the temperature range of 300-450 DEG C into
Row mechanical processing.
The above, is only presently preferred embodiments of the present invention, is not intended to limit the invention, patent protection model of the invention
Enclose and be subject to claims, the equivalent structure change that every description with the present invention is made, should all similarly include
Within the scope of the present invention.
Claims (2)
1. a kind of machining process of aluminum alloy machinery casting, it is characterised in that include the following steps：
(1) aluminium alloy castings is first heated to 300-450 DEG C, and maintained 10-15 minutes；
(2) aluminium alloy castings temperature is cooled to rapidly 200-250 DEG C within half a minute, and in 200-250 DEG C of temperature range
Interior maintenance 10-15 minutes；
(3) after 300-450 DEG C will be heated rapidly in aluminium alloy castings half a minute again, within the temperature range of 300-450 DEG C into
Row mechanical processing.
2. a kind of machining process of aluminum alloy machinery casting as claimed in claim 1, it is characterised in that in step (3)
Temperature than at least 20 DEG C of the temperature height in step (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222029.4A CN107974650A (en) | 2017-11-29 | 2017-11-29 | A kind of machining process of aluminum alloy machinery casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222029.4A CN107974650A (en) | 2017-11-29 | 2017-11-29 | A kind of machining process of aluminum alloy machinery casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107974650A true CN107974650A (en) | 2018-05-01 |
Family
ID=62008367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711222029.4A Pending CN107974650A (en) | 2017-11-29 | 2017-11-29 | A kind of machining process of aluminum alloy machinery casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107974650A (en) |
-
2017
- 2017-11-29 CN CN201711222029.4A patent/CN107974650A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180501 |